Preheat oven to 350 degrees F and grease a donut pan.
In a bowl, combine almond flour, coconut flour, cinnamon, baking soda, and sea salt, and mix together.
In a large separate bowl, whisk together maple syrup, coconut milk, ghee, and eggs.
Slowly pour dry ingredients to wet ingredients and whisk together to mix.
Place the batter in a piping bag, or a plastic resealable bag with the corner snipped off.
Pipe into 10 donut molds so they are about 3/4 way full. Tap the pan on the countertop a few times to remove air bubbles.
Bake for 18-20 minutes, until the edges of the donuts are browned.
Cool for 5 minutes, then transfer to a cooling rack.
Mix together coconut sugar and cinnamon on plate.
Brush the tops of the donuts with melted ghee, then dip in the cinnamon sugar to cover.
These are best enjoyed fresh, but you can store in the refrigerator in an airtight container for up to 3 days.